Is digesting french fries a chemical change?

* Breaking Down Complex Molecules: Your digestive system uses enzymes to break down the large, complex molecules in french fries (like starch, proteins, and fats) into smaller, simpler molecules that your body can absorb.

* New Substances Formed: This breakdown process involves forming new chemical bonds and breaking existing ones, resulting in entirely new substances. For example, starch is broken down into sugars, and proteins are broken down into amino acids.

* Irreversible Change: The process of digestion is not reversible. You can't simply "un-digest" the french fries and get them back to their original state.

In contrast, a physical change would be something like:

* Cutting the french fries into smaller pieces. The chemical composition of the fries remains the same, even though their physical appearance changes.

Therefore, the chemical reactions involved in digesting french fries make it a chemical change.